Log washer



Dec. 7 1926. J- L. MCQUEEN LOG WASHER 2 Sheets-Sheet 1 .Il u I u Dec. -7 1926.

J. L..V McQUE-EN LOG WA SHER Filed April 5, 1923 2 Sheets-Sheet 2 nucnto'o.

JIL/Mc: a

Patented Dec. 7, 1926.

UNi'iED stares PATE JOI-IN Ii. MCQUEEN, 0F ARKANSAS CITY, KANSAS.

LOG WASI-IER.

Application filed April of this character constructed so that very` little water is required for washing the material and yet the material may be handled with speed. v

Another object is to so construct an apparatus of this character that the material is carried forward and the entire material both at the top and bottom of the log cut or agitatedat every revolution of the log,

Another object is to provide a log washer having paddles or blades so mountedl as'to resist the pull and'be held securely against accidental detachment and yet permit them to be readily removed and replaced when broken or worn.

Another object is to provide a log washer equipped with paddles so shaped and mounted as to present a cutting` edge to the material adapting the apparatus to be run at high speed with the use of4 very little power and avoid the formation of mud balls increasing the capacity ofthe machine.

Another object is to provide a washer of the class described, the logs of which vhave thimbles mounted so as to prevent all possibility of them becoming loose and which have the shafts on which the logs are supported so connected with the thiinbles that they may be readily taken out and replaced without removing the logs. I

Another object istoprovide a washer of this character which is simple in construction, cheap to manufacture, the parts kof which may be easily replaced, and which maybe operated with minimum power and very economically. y With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de 'scribed and claimed, it being understood `will be described indetail.

192e. serial No. ceases,

that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention. In the accompanying drawings: Figure 1 represents a plan view of a washer lconstructed in accordance 'with this invention.

r oFFicE.

Fig. 2 is a longitudinal vertical section Y thereof with parts broken out for conven*V ience'in illustration.l

Fig. Sis a detail side elevation of one of the paddles used in connection with the apparatus.

Fig. 4 is a top plan view thereof.

' Fig. 5 is a detail vertical section through one of the paddles and a portion of one 'log showing the manner of mounting the pad* dles on the log, and

Fig. 6 is a. detail side elevation of one of the bolts used in connecting the paddles and v the log.

In the embodiment illustrated, 'a stockade lisvshown constructed of any suitable Vmaterial in which the logs l0 and 2O are mounted and which is designed towhold the water and the materialto be treated.

The front end 2 and the rear end 3 of the stockade 1 are constructed of heavy timbers capable of supporting the logs, the front end being higher than the rear to provide for the elevation of the front ends of the logs .for a purpose hereinafter to be described.

The two parallel logs l0 and 2O which revolve in opposite directions, turning away from each other are constructed of hollow steel and are exactly alike, hence one only logs has a cast iron thiinble 1l shrunken into eachvend thereof and each thiinble is Each of these provi-ded at its outer end with'an annular Harige l2 to provide for the riveting of the thimble to the log in addition to its being shrunken therein, so as to avoid all possibility of the thimble, being accidentally detached from the log. Each of these thimbles is also provided at its outer end with a hub 13 having a keywav formed therein to receive a key 14 for rigidly connecting the supporting` shaft l5, the shafts of the front end of the machine being` longer than those at thel rear, the rear shafts being numico bered and the purpose ot which will be presently described. The hub 13 is bored ttor a` set screw t to assist in securing the log' and the shaft as is shown clearly in Fia'. 2.

Mounted on the trout shafts l5 of the logs l() and 20 which shatt ends project through suitable bearing-s in the Jfront. end 2 ol" the stocleuile l are two large gears li' and i8 meshing' with each other and to which power is transmitted by a smaller gear or pinion 19. ',l`hese gears are tixedly mounted on the shatt ends la which are preferably constructed ot cold. rolled steel.

The shafts l5 at the rear end ot the logs are similarly mounted in the logs but have no gears. said shatts being` shorter than the front shafts and journaled in suitable bearings formed in the end member 3.

The mounting; ot the shafts Vin the manner above described provides tor the ready assembling and replacement thereof when they become worn incident to running et `the shaft ends in mud and water and this may be accomplished without removing` the logs by simply unscrewiug the set screws i6 and driving' out the shafts from the hubs 13.

These logs l0 and 20 are provided at regular intervals with heavy iron paddles or blades 2l which are set on the logs in spiral alinement. rFhis alinement ot' the paddles makes two or more complete revolutions around the loteY in placing them trom trout to rear. The number ot rows ot spirals or paddles may be either four, live. or six and the blades so arranged and timed that when the logs revolve, the blades have a clearance of two and one-halt inches and each blade has another blade. arranged a` little in ad* vance on the other set so as to piel; up the material dropped from the blade in the rear and thus carry it forward. It will thus be. seen that when the material to be treated is dumped in at the back or rear end ot the washer on the revolving` blades ot' the logs, it will be agitated and carried forward along an;` between the blades. These blades, as will be hereinafter more fully described. are so constructed and arranged that the entire material both at the top and bottom ot' the logs are cut or agitated at every revolution of the lon'.

The logs l0 and 20 are inclined upwardly from their rear toward their front ends, the front end where the gravel is discharged washed and cleaned'. being' about sixteen inches. more or less` higher than the rear end where the material is dumped in.

A small stream ol5 water is kept running through the waslier supplied trom overhead jets (not shown) and this water together with the slant ol the logs torces all the dirt, clay and refuse material out ot a small spill way (not shown) tornud in the rear end ot the apparatus while the forward motion ot the revolving logs agitates and carries the gravel through to a spillway (not shown) in the trout end f2 and where the `navel or ore is discharged, washed and cleaned.

lt is ot' course understood that the logs l() and 2O may be ot any desired length according' to the size ot thc washer and the material to be treatcth said logs being` preterably about twenty leet long.

lhese .logs are equipped with keyhole slots 22 arranged to register with similarlyv shaped slots 23 'ormcd at the bases of the paddles or blades 2l.

The paddles or blades 2l are preferably constructed of cast iron chilled down six inches from the outer end ot the blade. These blades are wider at their bases than at their outer ends and are set at an angle of d50 on their base plates 2l as is shown clearly in Fig. 4r. These base plates 24 are curved longitudinally to lit the perimeter ot' the log as is shown clearly in Fig. 5 and they are fastened to the log by bolts 25 which Vare entered through thedlarger portion oi the slots 23 and 22 and then moved down the elongated portions 23 and 22 toward the paddle 21 and are secured by suitable nuts 26. These bolts have the usual heads 27 at one end. and adjacent said heads the necks 28 thereof are made polygonal to fit in the portions 22 of the slots 22 whereby the bolt is to be screwed on. The bolts 25 are each provided with a laterally extending lug 29 which is designed to enter the elongated portion 2r ofthe keyhold in plate 24 as is shown clearly in Fig. 5, the slots 23 being longer than those 22 to provide for this arrangement and to prevent the bolts from dropping through intoA the log while the nuts are being' screwed on.

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Each paddle is mounted on the log in connection with which it is used by three bolts, two ot which are arranged on the pulling side ot the paddle as is shown clearly in Fig. 1`r and the other on the opposed side. This connection ot the paddles with the logs by means of the extended base 24 secured in the manner above described proviees a very rigid union of the paddles with the logs avoiding all danger of their working loose or being broken ot and positions them at an oblique angle relative to the longitudinal axis of the log. means ot fastening the paddles' to the'l logs prevents them from' being accidentally detached, yet they may be readily removed and replaced when desired.

The paddles 21 taper toward their outer ends and at their bases are preferably about eleven inches wide, while at their points, they are tive inches, the length ot the' blades being about eleven inches and being set on all their bases 24 at a 415 angle and positioned on the loo; about two inches apart which provides for the positioning of all While this:

the points of the paddles about seven inches apart. These paddles each has a straight cutting edge 2l. This formation of the paddles with tapered narrow points and wide bases decreases the power necessary to operate the washer about 50% over the old form of using paddles of uniform width throughout. This construction of the paddles also increases the capacity of the machine about 75%, more or less, without the formation of mud balls. v

The construction of the blades causes the thickened enlarged bases thereof to carry about two-thirds of the load while the smaller points carry the balance and allow the water to penetrate the material while being washed, and that part mostly exposed to the water to be washed is delivered to the front of the machine and discharged while the remainder is only about half way through the machine, thus causing a parallel as well as a circular agitation.

Various changes in the form, shape, proportion and other minor details of construc tion may be made without departing from the principle or sacrificing any of the advantages of the claimed invention.

I claim In an apparatus of the class described, a hollow log having key-hole openings formed therein, agitating blades including base plates curved to conform to the curvature of the hollow log, said base plates having key-hole openings, the key-hole openings of the base plate being longer than the keyhole openings of the log, bolts extending through the key-hole openings, said bolts having heads and having polygonal portion, said bolts adapted to pass through the key-hole openings of the log, said bolts having laterally extended lugs adapted to extend into the key-hole openings of the base plates, .said lugs adapted to engage the log adjacent to the key-hole openings to prevent the bolts from falling within the log, nuts on the bolts for securing the base plates to the log, and blades carried by the base plates.

In testimony that I claim the foregoing as my own, I have hereto aixed my signature.

JOHN L. MCQUEEN. 

